handset tailor made for DJing? How's about transforming your existing iPhone into that very device when the mood strikes you? Hailed as the first true DJ MP3 iPhone / iPod touch app in the world, Amidio's $19.99 Touch DJ program (available now) enables users to independently manipulate two MP3 or M4A files, including scratching, looping, positioning, equalization, effects and pitching. The "visual mixing" requires all sorts of tapping and sliding, but the on-screen UI seems pretty elegant from what we've seen. The only real knock on this is that there's currently no way to get music from the iTunes library into the program; instead, you'll be forced to reload tracks into the app's own MP3 library. Still, for those looking to ditch the hard case and waltz in with a pocketful of boogie, this ain't a half bad option. Check the demonstration vid after the break.